L74m, l74c, Installation & maintenance instructions – Norgren L74C Series User Manual

Page 2

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ASSEMBLY
1. Lubricate o-rings, the portion of the manual drain body

(18, 28) that contacts the bowl, and the hole in the
manual drain body that accommodates the stem of drain
valve (19, 29) with o-ring grease.

2. Assemble lubricator as shown on exploded view. Early

and current cartridge assemblies (items 52 and 56) are
not interchangeable. Always replace a used cartridge with
an identical cartridge. Early cartridges have a slotted tab
(52); current cartridges have a hole in the tab (56).

3. Assemble the 1 litre (1 quart) liquid indicator parts (65,

66, 67, 68, 69, 70) to reservoir. Apply a 0.9 to 1.8 kg (2
to 4 pound) clamping force to upper and lower sight
glass brackets (66). Tighten screws (65).

4. Torque Table

N-m (Inch-Pounds)

2 (fill plug), 4 (quick fill cap)

1,1 to 1,6 (10 to 14)

6, 8 (Dome) and 21, 31 (Nut)

2,3 to 2,8 (20 to 25)

34, 45 (Screw)

1,7 to 2,3 (15 to 20)

53, 57 (Screw)

1,1 to 1,6 (10 to 14)

65 (Screw)

0,9 to 1,1 (8 to 10)

5. Push reservoir, or reservoir with guard, into body and

turn fully clockwise.

© Norgren 2002

L74M, L74C

Installation & Maintenance

Instructions

WARNING

These products are intended for use in industrial

compressed air systems only. Do not use these products
where pressures and temperatures can exceed those listed
under Technical Data.

Polycarbonate plastic reservoirs can be damaged and

possibly burst if exposed to such substances as certain
solvents, strong alkalies, compressor oils containing ester-
based additives or synthetic oils. Fumes of these
substances in contact with the polycarbonate reservoir,
externally or internally, can also result in damage. Clean
with warm water only

Use metal reservoir in applications where a plastic

reservoir might be exposed to substances that are
incompatible with polycarbonate.

In lubrication applications some oil mist may escape

from the point of use to the surrounding atmosphere.
Users are referred to safety and health standards for
limiting oil mist contamination and utilization of protecting
equipment

Before using these products with fluids other than air,

for nonindustrial applications, or for life-support systems
consult Norgren.

a subsidiary of IMI plc

IM-200.400.02

(5/02)

Supersedes 4/99

50

34

35

36

39

37

38

33

28

32

30

29

31

27

Current Metal Bowl

40

Early Plastic Bowl

Early Metal Bowl

44

49

Current Plastic Bowl

17

26

25

24

23

22

18

20

19

21

45

46

48

47

42

41

43

Optional 1 Quart (1 Litre) Bowl

58

59

65

66

68

69

70

68

66

67

63

60

64

62

1

51

52

54

55

53

4

5

2

3

61

8

9

6

7

56

57

57A

57B

Current
Cartridge

Early
Cartridge

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